mikeh, on Jul 15 2010, 05:52 PM, said:
The idea is that if we have a long enough minor fit that we want to play 2(opener's)minor even after the 1N bid, the odds are huge that 4th hand has either a 5 card major or a stayman hand. So we won't usually be playing 2opener's minor when it is 'right' for us to do so. Thus 2 of that minor is weak, both majors.
Say the auction went 1D - (1NT) - ..
Why does this theory apply to diamonds but not to clubs? Bidding 2C for the majors has the advantage that you are more likely to find your best fit when you are 5-4. 2D natural has the disadvantage that they were opened by the opponents, but the advantage that partner has something in diamonds.
I'd say 2C for the majors is better, it's also more natural to me since I play Stayman. And Landy.